CAS号查询库

CAS号是公开的化学物质信息的最权威的集合。CAS号涵盖从1957年至今的科学文献中确定的物质，其他物质可追溯到20世纪初。它也称CAS编号(CAS Registry Number，或称CAS Number，CAS Rn，CAS #)，又称CAS登录号或CAS登记号码，是某种物质(化合物、高分子材料、生物序列(Biological sequences)、混合物或合金)的唯一的数字识别号码。美国化学会的下设组织化学文摘社(Chemical Abstracts Service，简称CAS)负责为每一种出现在文献中的物质分配一个CAS编号，其目的是为了避免化学物质有多种名称的麻烦，使数据库的检索更为方便。如今几乎所有的化学数据库都允许用CAS编号检索。

名称	英文名	物理化学性质	CAS号	分子式
4-(1-(Methylsulfonyl)ethyl)benzoic acid	4-(1-(Methylsulfonyl)ethyl)benzoic acid	分子量：228.27 密度：N/A 沸点：N/A 熔点：N/A	1346608-67-0	C₁₀H₁₂O₄S
2-Oxo-5-(piperidin-4-yl)-1,2-dihydropyridine-3-carboxylic acid	2-Oxo-5-(piperidin-4-yl)-1,2-dihydropyridine-3-carboxylic acid	分子量：222.24 密度：N/A 沸点：N/A 熔点：N/A	1890186-93-2	C₁₁H₁₄N₂O₃
3,3-Difluoro-1-(piperidin-3-yl)cyclobutane-1-carboxylic acid	3,3-Difluoro-1-(piperidin-3-yl)cyclobutane-1-carboxylic acid	分子量：219.23 密度：N/A 沸点：N/A 熔点：N/A	1889987-00-1	C₁₀H₁₅F₂NO₂
3,3-Difluoro-1-(piperidin-4-yl)cyclobutane-1-carboxylic acid	3,3-Difluoro-1-(piperidin-4-yl)cyclobutane-1-carboxylic acid	分子量：219.23 密度：N/A 沸点：N/A 熔点：N/A	1897510-47-2	C₁₀H₁₅F₂NO₂
(8-Bromoquinoxalin-5-yl)methanol	(8-Bromoquinoxalin-5-yl)methanol	分子量：239.07 密度：N/A 沸点：N/A 熔点：N/A	1360599-49-0	C₉H₇BrN₂O
Methyl 3-methyl-2-(2-methylbenzyl)butanoate	Methyl 3-methyl-2-(2-methylbenzyl)butanoate	分子量：220.31 密度：N/A 沸点：N/A 熔点：N/A	1890791-21-5	C₁₄H₂₀O₂
Methyl 2-(3-fluorobenzyl)-3-methylbutanoate	Methyl 2-(3-fluorobenzyl)-3-methylbutanoate	分子量：224.27 密度：N/A 沸点：N/A 熔点：N/A	1893791-80-4	C₁₃H₁₇FO₂
4-(3-tert-butylphenyl)-1H-imidazole	4-(3-tert-butylphenyl)-1H-imidazole	分子量：200.28 密度：N/A 沸点：N/A 熔点：N/A	2228815-80-1	C₁₃H₁₆N₂
(19S,20S)-20-ethyl-20-hydroxy-19-methoxy-17-oxa-3,13-diazapentacyclo[11.9.0.02,11.04,9.015,21]docosa-1(22),2,4,6,8,10,15(21)-heptaene-14,18-dione	(19S,20S)-20-ethyl-20-hydroxy-19-methoxy-17-oxa-3,13-diazapentacyclo[11.9.0.02,11.04,9.015,21]docosa-1(22),2,4,6,8,10,15(21)-heptaene-14,18-dione	分子量：392.4 密度：N/A 沸点：N/A 熔点：N/A	1695570-04-7	C₂₂H₂₀N₂O₅
6-(Benzyloxy)-2,3-dihydrobenzo[b][1,4]dioxine	6-(Benzyloxy)-2,3-dihydrobenzo[b][1,4]dioxine	分子量：242.27 密度：N/A 沸点：N/A 熔点：N/A	1699756-61-0	C₁₅H₁₄O₃
4,5-Dihydroxy-4-methyl-2-[(4-methylphenyl)sulfonylcarbamoyl]cyclohexane-1-carboxylic acid	4,5-Dihydroxy-4-methyl-2-[(4-methylphenyl)sulfonylcarbamoyl]cyclohexane-1-carboxylic acid	分子量：371.4 密度：N/A 沸点：N/A 熔点：N/A	1254714-25-4	C₁₆H₂₁NO₇S
Thieno[3,2-d]pyrimidin-4(3H)-one, 7-(1-acetyl-3-piperidinyl)-3-ethyl-2-[(1-methylethyl)amino]-	Thieno[3,2-d]pyrimidin-4(3H)-one, 7-(1-acetyl-3-piperidinyl)-3-ethyl-2-[(1-methylethyl)amino]-	分子量：362.5 密度：N/A 沸点：N/A 熔点：N/A	1702712-41-1	C₁₈H₂₆N₄O₂S
3-(2,2-Dimethylthiomorpholin-4-yl)propanoic acid	3-(2,2-Dimethylthiomorpholin-4-yl)propanoic acid	分子量：203.30 密度：N/A 沸点：N/A 熔点：N/A	1602964-92-0	C₉H₁₇NO₂S
Cytochalasin B6	Cytochalasin B6	分子量：479.6 密度：N/A 沸点：N/A 熔点：N/A	82239-94-9	C₂₉H₃₇NO₅
1-(2,2-Dimethylthiomorpholin-4-yl)-3-methoxypropan-2-ol	1-(2,2-Dimethylthiomorpholin-4-yl)-3-methoxypropan-2-ol	分子量：219.35 密度：N/A 沸点：N/A 熔点：N/A	1602722-83-7	C₁₀H₂₁NO₂S
I(2)-Alanine, N-[4,4-bis(3-methyl-2-thienyl)-3-buten-1-yl]-N-methyl-	I(2)-Alanine, N-[4,4-bis(3-methyl-2-thienyl)-3-buten-1-yl]-N-methyl-	分子量：349.5 密度：N/A 沸点：N/A 熔点：N/A	1710791-82-4	C₁₈H₂₃NO₂S₂
4(3H)-Quinazolinone, 6,7-dimethoxy-2-(methylthio)-3-(phenylmethyl)-	4(3H)-Quinazolinone, 6,7-dimethoxy-2-(methylthio)-3-(phenylmethyl)-	分子量：342.4 密度：N/A 沸点：N/A 熔点：N/A	1678513-98-8	C₁₈H₁₈N₂O₃S
6-(3,4-Dichlorophenoxy)-4-pyrimidinecarboxylic acid	6-(3,4-Dichlorophenoxy)-4-pyrimidinecarboxylic acid	分子量：285.08 密度：N/A 沸点：N/A 熔点：N/A	1648618-15-8	C₁₁H₆Cl₂N₂O₃
6-(3,4-Dichlorophenyl)-5-hydroxy-4-pyrimidinecarboxylic acid	6-(3,4-Dichlorophenyl)-5-hydroxy-4-pyrimidinecarboxylic acid	分子量：285.08 密度：N/A 沸点：N/A 熔点：N/A	1648618-19-2	C₁₁H₆Cl₂N₂O₃
6-(3,4-Dichlorophenyl)-5-methyl-4-pyrimidinecarboxylic acid	6-(3,4-Dichlorophenyl)-5-methyl-4-pyrimidinecarboxylic acid	分子量：283.11 密度：N/A 沸点：N/A 熔点：N/A	1426382-33-3	C₁₂H₈Cl₂N₂O₂
6-[3-Chloro-4-(cyclohexyloxy)phenyl]-4-pyrimidinecarboxylic acid	6-[3-Chloro-4-(cyclohexyloxy)phenyl]-4-pyrimidinecarboxylic acid	分子量：332.8 密度：N/A 沸点：N/A 熔点：N/A	1648618-21-6	C₁₇H₁₇ClN₂O₃
(1R,3aS,4S,7aR)-1-[(1R)-1,5-Dimethylhexyl]octahydro-7a-methyl-1H-inden-4-ol	(1R,3aS,4S,7aR)-1-[(1R)-1,5-Dimethylhexyl]octahydro-7a-methyl-1H-inden-4-ol	分子量：266.5 密度：N/A 沸点：N/A 熔点：N/A	245115-86-0	C₁₈H₃₄O
5-((3R)-3-Fluoropyrrolidin-1-yl)-N-(11C)methyl-2-(3-methylquinoxalin-2-yl)-N-tetrahydropyran-4-yl-pyrazolo(1,5-a)pyrimidin-7-amine	5-((3R)-3-Fluoropyrrolidin-1-yl)-N-(11C)methyl-2-(3-methylquinoxalin-2-yl)-N-tetrahydropyran-4-yl-pyrazolo(1,5-a)pyrimidin-7-amine	分子量：460.5 密度：N/A 沸点：N/A 熔点：N/A	1810802-70-0	C₂₅H₂₈FN₇O
I(2)-D-Glucopyranosiduronic acid, (2S)-3,4-dihydro-5-hydroxy-8-methoxy-2-(3-methoxyphenyl)-4-oxo-2H-1-benzopyran-7-yl, methyl ester	I(2)-D-Glucopyranosiduronic acid, (2S)-3,4-dihydro-5-hydroxy-8-methoxy-2-(3-methoxyphenyl)-4-oxo-2H-1-benzopyran-7-yl, methyl ester	分子量：506.5 密度：N/A 沸点：N/A 熔点：N/A	1651824-65-5	C₂₄H₂₆O₁₂
5-Chloro-2-(4-(trifluoromethoxy)benzyloxy)benzaldehyde	5-Chloro-2-(4-(trifluoromethoxy)benzyloxy)benzaldehyde	分子量：330.68 密度：N/A 沸点：N/A 熔点：N/A	1835283-96-9	C₁₅H₁₀ClF₃O₃
3-Bromo-1-[3-(Boc-amino)propyl]-1H-indole-5-carbaldehyde	3-Bromo-1-[3-(Boc-amino)propyl]-1H-indole-5-carbaldehyde	分子量：381.3 密度：N/A 沸点：N/A 熔点：N/A	1835283-88-9	C₁₇H₂₁BrN₂O₃
1-[3-(Boc-amino)propyl]-3-[4-(trifluoromethoxy)phenyl]-1H-indole-5-carbaldehyde	1-[3-(Boc-amino)propyl]-3-[4-(trifluoromethoxy)phenyl]-1H-indole-5-carbaldehyde	分子量：462.5 密度：N/A 沸点：N/A 熔点：N/A	1835283-89-0	C₂₄H₂₅F₃N₂O₄
tert-Butyl N-[3-(5-formylindol-1-yl)propyl]carbamate	tert-Butyl N-[3-(5-formylindol-1-yl)propyl]carbamate	分子量：302.37 密度：N/A 沸点：N/A 熔点：N/A	1835283-87-8	C₁₇H₂₂N₂O₃
Canagliflozin 2-Methylphenyl	Canagliflozin 2-Methylphenyl	分子量：444.5 密度：N/A 沸点：N/A 熔点：N/A	2161394-95-0	C₂₄H₂₅FO₅S
1-[2-Amino-4-(trifluoromethyl)phenyl]-3-methylpiperidin-3-ol	1-[2-Amino-4-(trifluoromethyl)phenyl]-3-methylpiperidin-3-ol	分子量：274.28 密度：N/A 沸点：N/A 熔点：N/A	1771660-73-1	C₁₃H₁₇F₃N₂O
(5-Methyloxolan-3-yl)methyl 4-methylbenzene-1-sulfonate	(5-Methyloxolan-3-yl)methyl 4-methylbenzene-1-sulfonate	分子量：270.35 密度：N/A 沸点：N/A 熔点：N/A	185224-61-7	C₁₃H₁₈O₄S
3-(1-Cyanocyclopropyl)propanoic acid	3-(1-Cyanocyclopropyl)propanoic acid	分子量：139.15 密度：N/A 沸点：N/A 熔点：N/A	1836140-95-4	C₇H₉NO₂
2-(Thiolan-3-yl)acetamide	2-(Thiolan-3-yl)acetamide	分子量：145.23 密度：N/A 沸点：N/A 熔点：N/A	2137687-49-9	C₆H₁₁NOS
N-methanesulfonylazetidine-3-carboxamide	N-methanesulfonylazetidine-3-carboxamide	分子量：178.21 密度：N/A 沸点：N/A 熔点：N/A	1697740-07-0	C₅H₁₀N₂O₃S
3-Chloro-5-(1-piperidinyl)-2-pyrazinecarbonitrile	3-Chloro-5-(1-piperidinyl)-2-pyrazinecarbonitrile	分子量：222.67 密度：N/A 沸点：N/A 熔点：N/A	2416132-21-1	C₁₀H₁₁ClN₄
3-(4-Bromo-3-fluorophenyl)prop-2-yn-1-ol	3-(4-Bromo-3-fluorophenyl)prop-2-yn-1-ol	分子量：229.05 密度：N/A 沸点：N/A 熔点：N/A	1141049-62-8	C₉H₆BrFO
(1R,2S,5R)-N-Cyclopropyl-5-methyl-2-(2-propanyl)cyclohexanecarboxamide	(1R,2S,5R)-N-Cyclopropyl-5-methyl-2-(2-propanyl)cyclohexanecarboxamide	分子量：223.35 密度：N/A 沸点：N/A 熔点：N/A	2013592-21-5	C₁₄H₂₅NO
(R)-N-Boc-1-(3-pyridazinyl)pyrrolidin-3-amine	(R)-N-Boc-1-(3-pyridazinyl)pyrrolidin-3-amine	分子量：264.32 密度：N/A 沸点：N/A 熔点：N/A	1832647-20-7	C₁₃H₂₀N₄O₂
(E)-1-(3-((5-methylpyridin-2-yl)oxy)pyrrolidin-1-yl)but-2-en-1-one	(E)-1-(3-((5-methylpyridin-2-yl)oxy)pyrrolidin-1-yl)but-2-en-1-one	分子量：246.30 密度：N/A 沸点：N/A 熔点：N/A	1904632-89-8	C₁₄H₁₈N₂O₂
2-chloro-N-((1r,4r)-4-(pyrazin-2-yloxy)cyclohexyl)acetamide	2-chloro-N-((1r,4r)-4-(pyrazin-2-yloxy)cyclohexyl)acetamide	分子量：269.73 密度：N/A 沸点：N/A 熔点：N/A	2108980-33-0	C₁₂H₁₆ClN₃O₂
(E)-1-(3-(pyridin-3-yloxy)azetidin-1-yl)-3-(thiophen-2-yl)prop-2-en-1-one	(E)-1-(3-(pyridin-3-yloxy)azetidin-1-yl)-3-(thiophen-2-yl)prop-2-en-1-one	分子量：286.4 密度：N/A 沸点：N/A 熔点：N/A	1904609-26-2	C₁₅H₁₄N₂O₂S
(E)-3-phenyl-1-(3-(pyridin-3-yloxy)azetidin-1-yl)prop-2-en-1-one	(E)-3-phenyl-1-(3-(pyridin-3-yloxy)azetidin-1-yl)prop-2-en-1-one	分子量：280.32 密度：N/A 沸点：N/A 熔点：N/A	1904637-28-0	C₁₇H₁₆N₂O₂
3-chloro-2-({2-[5-(2-methylphenyl)-1H-1,2,3,4-tetraazol-1-yl]ethyl}sulfanyl)-5-(trifluoromethyl)pyridine	3-chloro-2-({2-[5-(2-methylphenyl)-1H-1,2,3,4-tetraazol-1-yl]ethyl}sulfanyl)-5-(trifluoromethyl)pyridine	分子量：399.8 密度：N/A 沸点：N/A 熔点：N/A	2059492-69-0	C₁₆H₁₃ClF₃N₅S
3-chloro-5-(trifluoromethyl)-2-pyridinyl 2-{5-[3-(trifluoromethyl)phenyl]-1H-1,2,3,4-tetraazol-1-yl}ethyl sulfide	3-chloro-5-(trifluoromethyl)-2-pyridinyl 2-{5-[3-(trifluoromethyl)phenyl]-1H-1,2,3,4-tetraazol-1-yl}ethyl sulfide	分子量：453.8 密度：N/A 沸点：N/A 熔点：N/A	2061169-71-7	C₁₆H₁₀ClF₆N₅S
2-chloro-N-{[3-chloro-5-(trifluoromethyl)-2-pyridinyl]methyl}benzenecarboxamide	2-chloro-N-{[3-chloro-5-(trifluoromethyl)-2-pyridinyl]methyl}benzenecarboxamide	分子量：349.1 密度：N/A 沸点：N/A 熔点：N/A	239110-17-9	C₁₄H₉Cl₂F₃N₂O
3,4-dichloro-N-{[3-chloro-5-(trifluoromethyl)-2-pyridinyl]methyl}benzenecarboxamide	3,4-dichloro-N-{[3-chloro-5-(trifluoromethyl)-2-pyridinyl]methyl}benzenecarboxamide	分子量：383.6 密度：N/A 沸点：N/A 熔点：N/A	239109-99-0	C₁₄H₈Cl₃F₃N₂O
N-{[3-chloro-5-(trifluoromethyl)-2-pyridinyl]methyl}-2-methoxybenzenecarboxamide	N-{[3-chloro-5-(trifluoromethyl)-2-pyridinyl]methyl}-2-methoxybenzenecarboxamide	分子量：344.71 密度：N/A 沸点：N/A 熔点：N/A	239110-16-8	C₁₅H₁₂ClF₃N₂O₂
N-{[3-chloro-5-(trifluoromethyl)-2-pyridinyl]methyl}-2-methylbenzenecarboxamide	N-{[3-chloro-5-(trifluoromethyl)-2-pyridinyl]methyl}-2-methylbenzenecarboxamide	分子量：328.71 密度：N/A 沸点：N/A 熔点：N/A	239110-13-5	C₁₅H₁₂ClF₃N₂O
3-chloro-2-({2-[5-(2-chlorophenyl)-1H-1,2,3,4-tetraazol-1-yl]ethyl}sulfanyl)-5-(trifluoromethyl)pyridine	3-chloro-2-({2-[5-(2-chlorophenyl)-1H-1,2,3,4-tetraazol-1-yl]ethyl}sulfanyl)-5-(trifluoromethyl)pyridine	分子量：420.2 密度：N/A 沸点：N/A 熔点：N/A	2061169-85-3	C₁₅H₁₀Cl₂F₃N₅S
1-(3-Chloro-5-trifluoromethyl-pyridin-2-ylmethyl)-piperidine-4-carboxylic acid ethyl ester	1-(3-Chloro-5-trifluoromethyl-pyridin-2-ylmethyl)-piperidine-4-carboxylic acid ethyl ester	分子量：350.76 密度：N/A 沸点：N/A 熔点：N/A	1858242-66-6	C₁₅H₁₈ClF₃N₂O₂